Ironwood Pharmaceuticals: Bank of America reports 3.2% stake

Ironwood Pharmaceuticals Inc. (IRWD) is the issuer of the Class A common stock for which Bank of America Corporation reports beneficial ownership of 5,219,315 shares, or 3.2%.

Rhea-AI Filing Summary

Ironwood Pharmaceuticals Inc. (IRWD) is the issuer of the Class A common stock for which Bank of America Corporation reports beneficial ownership of 5,219,315 shares, or 3.2%. The reported position carries shared voting and dispositive power over 5,219,315 shares, with zero sole voting or dispositive power. The percentage calculation uses 165,239,947 shares outstanding as of July 31, 2026, according to the issuer's Form 10-Q.

Key Figures

Beneficial ownership: 5,219,315 shares Percent of class: 3.2% Shared voting power: 5,219,315 shares +3 more

6 metrics

Beneficial ownership 5,219,315 shares Ironwood Class A common stock

Percent of class 3.2% Ironwood Class A common stock

Shared voting power 5,219,315 shares Ironwood Class A common stock

Shared dispositive power 5,219,315 shares Ironwood Class A common stock

Sole voting and dispositive power 0 shares Ironwood Class A common stock

Issuer shares outstanding 165,239,947 shares As of July 31, 2026

Key Terms

beneficial ownership, Shared Voting Power, Shared Dispositive Power

3 terms

beneficial ownership regulatory

"Amount beneficially owned"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

Shared Voting Power regulatory

"Shared Voting Power 5,219,315.00"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

Shared Dispositive Power regulatory

"Shared Dispositive Power 5,219,315.00"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many IRWD shares does Bank of America report beneficially owning?

Bank of America Corporation reports beneficial ownership of 5,219,315 Ironwood Class A common shares, equal to 3.2% of the class. It reports shared voting and dispositive power over 5,219,315 shares, with zero sole voting or dispositive power.

Which subsidiaries are included in Bank of America's IRWD ownership statement?

Bank of America Corporation states that it acts on behalf of itself and its wholly owned subsidiaries BofA Securities, Inc., Bank of America N.A., and Merrill Lynch International.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/28/2026 - 01:38 PM EDT Accepted by SEC EDGAR 10/28/2026 - 01:38 PM EDT Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 2)

IRONWOOD PHARMACEUTICALS INC

(Name of Issuer)

Class A Common Stock

(Title of Class of Securities)

46333X108

(CUSIP Number)

09/30/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 46333X108

1

Names of Reporting Persons

BANK OF AMERICA CORP /DE/

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 5,219,315.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 5,219,315.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

5,219,315.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

3.2 %

12

Type of Reporting Person (See Instructions)

HC

Comment for Type of Reporting Person: The beneficial ownership calculation relies on the 165,239,947 outstanding shares disclosed in the Form 10-Q by the issuer on August 6, 2026, which reports share totals as of July 31, 2026.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: IRONWOOD PHARMACEUTICALS INC
(b)	Address of issuer's principal executive offices: 100 SUMMER STREET, SUITE 2300, BOSTON, MASSACHUSETTS, 02110.
Item 2.
(a)	Name of person filing: BANK OF AMERICA CORP /DE/
(b)	Address or principal business office or, if none, residence: 100 N TRYON ST CHARLOTTE, NC 28255
(c)	Citizenship: Delaware
(d)	Title of class of securities: Class A Common Stock
(e)	CUSIP No.: 46333X108
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 5,219,315.00
(b)	Percent of class: 3.2%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0.00
	(ii) Shared power to vote or to direct the vote: 5,219,315.00
	(iii) Sole power to dispose or to direct the disposition of: 0.00
	(iv) Shared power to dispose or to direct the disposition of: 5,219,315.00
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. This statement on Schedule 13G is being filed by Bank of America Corporation on behalf of itself and its wholly owned subsidiaries BofA Securities, Inc., a broker dealer registered under section 15 of the Act (15 U.S.C. 78o); Bank of America N.A., a bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c); and Merrill Lynch International, a non-U.S. institution in accordance with section 240.13d-1(b)(1)(ii)(J).
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

BANK OF AMERICA CORP /DE/

Signature:	/s/ Monica Yako
Name/Title:	Authorized Signatory
Date:	10/28/2026